Unlock instant, AI-driven research and patent intelligence for your innovation.

Control valve

a control valve and valve body technology, applied in the direction of valve housings, fluid pressure control, instruments, etc., can solve the problems of adversely affecting the sliding friction abov

Active Publication Date: 2016-03-24
TGK
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about a control valve that prevents vibrations during operation. The valve has a special spring that reduces vibrations, making it more stable and reliable. The technical effect of this invention is to improve the performance and accuracy of the control valve.

Problems solved by technology

However, when the vibration-proof spring is formed through a general press-forming process, the fixed state of the vibration-proof spring becomes unstable due to a deformation of material during the manufacturing process and this may possibly adversely affect the aforementioned sliding friction; the inventors of the present invention have proven this fact.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control valve
  • Control valve
  • Control valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022]The invention will now be described in detail based on preferred embodiments with reference to the accompanying drawings. This does not intend to limit the scope of the present invention, but to exemplify the invention.

[0023]In the following description, for convenience of description, the positional relationship in each structure may be expressed according to how each component is depicted in Figures. Note that the almost identical components are given the identical reference numerals in the following embodiments and their modifications and that the repeated description thereof will be omitted as appropriate.

[0024]The present embodiment is a constructive reduction to practice of the present invention where an expansion valve according to the preferred embodiments is used as a thermostatic expansion valve applied to a refrigeration cycle of an automotive air conditioner. The refrigeration cycle in the automotive air conditioner is configured by including a compressor, a conden...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A vibration-proof spring, which coaxially inserts a shaft, is provided in a body of a control valve. The vibration-proof spring includes a cylindrical spring body, spring parts, which are integrally formed with a side wall of the spring body and are supported by the spring body in a cantilevered manner, and bulging portions, which are formed, on surfaces of the spring parts facing the shaft, in a protruding manner. The spring body is formed as a cylindrical body such that a plate-like body, which is obtained by punching a metallic plate through a press-forming process, is bent along a longitudinal direction of the plate-like body. Also, the spring body is formed in such a manner as to have edge parts that protrude radially outward from at least one of ends of the cylindrical body in the direction of axis line.

Description

CLAIM OF PRIORITY[0001]This application claims priority to Japanese Patent Application No. 2014-194347, filed Sep. 24, 2014, and is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a control valve and, more particularly to a structure of a vibration-proof spring suitable in preventing the vibration of an actuating section of the control valve.[0004]2. Description of the Related Art[0005]A refrigeration cycle in an automotive air conditioner is generally configured such that the refrigeration cycle includes a compressor, a condenser, a receiver, an expansion valve, and an evaporator. The compressor compresses a circulating refrigerant. The condenser condenses the compressed refrigerant. The receiver separates the condensed refrigerant into a gas and a liquid. The expansion valve throttles and expands the separated liquid refrigerant and delivers it by turning it into a spray. Then the evaporator evaporat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): F25B41/06F16K1/34F16K27/02F16K31/02G05D16/20G05D23/19
CPCF25B41/062F16K1/34G05D23/1919F16K31/02G05D16/2013F16K27/0209F16F1/02F16K13/00F16K31/002F16K31/06F25B41/335F25B2341/0683F25B2500/13
Inventor SATAKE, RYOSUKEKANEKO, TAKESHIWATANABE, TAKESHIOMATA, YASUSHI
Owner TGK